Is Mammoth Energy Services (TUSK) stock Halal?

Mammoth Energy Services is an integrated oilfield service company that provides a diverse range of services to the energy industry. Their operations are critically aligned with the exploration and production sector, supporting the construction and maintenance of oil and natural gas infrastructure. Before any of that matters to a Muslim investor, one question comes first: is Mammoth Energy Services stock Halal?

Is Mammoth Energy Services Shariah compliant?

No. In the October 2026 screening Mammoth Energy Services (TUSK) does not pass AAOIFI screening: it fails the interest-bearing investments screen. Industrial businesses like Mammoth Energy Services usually pass the activity screen without drama. The harder test is financial: heavy assets mean heavy financing, and AAOIFI Shariah Standard No. 21 tolerates interest bearing debt and investments only below 30% of market capitalisation, ratios that shift with every move in the share price.

Does Mammoth Energy Services pass the business activity test?

The activity screen is only part of the picture this month: Mammoth Energy Services currently fails the interest-bearing investments screen, so the overall verdict is not compliant regardless of the business itself. The activity itself raises no Shariah objection; the scrutiny belongs to the financing.

Is Mammoth Energy Services' income Halal?

Yes, within AAOIFI's tolerance. Mammoth Energy Services' income from non-permissible sources stays below 5% of revenue in the October 2026 screening.

Does Mammoth Energy Services meet AAOIFI's debt and investment ratio requirements?

Not in full. Interest bearing investments currently exceed the 30% cap, measured against a market capitalisation of $137M (market data as of 1 October 2026), while the other ratio stays within it. One breach is enough to fail the screening; the ratios are reassessed monthly under our Shariah Supervisory Board.

Why do other halal screeners show a different verdict for Mammoth Energy Services?

Screeners can disagree without either being wrong. AAOIFI Shariah Standard No. 21, which Tabadulat applies, measures interest bearing debt and investments against market capitalisation with a 30% ceiling. MSCI and FTSE measure them against total assets with a 33% ceiling, and S&P and Dow Jones Islamic use a multi year average of market capitalisation. Data dates differ too, because each provider reads filings and prices on its own schedule. The same company can therefore pass one standard and fail another in the same month. Tabadulat publishes one answer, the AAOIFI result as of October 2026, and re-screens it every month.

Tabadulat is an ADGM regulated brokerage whose license covers Shari'a Compliant Regulated Activities, as the FSRA permission names them. New to the terminology? Gharar and Maysir, Sukuk, Zakat and purification are all explained in plain English.

New to the screening method? Read AAOIFI Standards Explained: What Makes a Stock Halal?